Vulnerability Name:

CVE-2021-34485 (CCN-206378)

Assigned:2021-08-10
Published:2021-08-10
Updated:2021-08-18
Summary:.NET Core and Visual Studio Information Disclosure Vulnerability
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N)
4.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.5 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-noinfo
CWE-732
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-34485

Source: XF
Type: UNKNOWN
ms-dotnet-cve202134485-info-disc(206378)

Source: CCN
Type: Microsoft Security TechCenter - August 2021
.NET Core Information Disclosure Vulnerability

Source: N/A
Type: Patch, Vendor Advisory
N/A

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:.net:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.0.8)
  • OR cpe:/a:microsoft:.net_core:*:*:*:*:*:*:*:* (Version >= 2.1 and <= 2.1.28)
  • OR cpe:/a:microsoft:.net_core:*:*:*:*:*:*:*:* (Version >= 3.1 and <= 3.1.17)
  • OR cpe:/a:microsoft:powershell_core:*:*:*:*:*:*:*:* (Version >= 7.0 and < 7.0.7)
  • OR cpe:/a:microsoft:powershell_core:*:*:*:*:*:*:*:* (Version >= 7.1 and < 7.1.4)
  • OR cpe:/a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:* (Version >= 15.0 and <= 15.9)
  • OR cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.0 and <= 16.10)

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:.net_core:2.1:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:3.1:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:5.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20213148
    P
    		RHSA-2021:3148: .NET 5.0 security and bugfix update (Important)
    2021-08-12
    oval:com.redhat.rhsa:def:20213142
    P
    		RHSA-2021:3142: .NET Core 3.1 security and bugfix update (Important)
    2021-08-11
    oval:com.redhat.rhsa:def:20213145
    P
    		RHSA-2021:3145: .NET Core 2.1 security and bugfix update (Low)
    2021-08-11
    BACK
    microsoft .net *
    microsoft .net core *
    microsoft .net core *
    microsoft powershell core *
    microsoft powershell core *
    microsoft visual studio 2017 *
    microsoft visual studio 2019 *
    microsoft .net core 2.1
    microsoft .net core 3.1
    microsoft .net core 5.0